Condenser mounting



Sept. 25, 1928.

. 1,685,563 w. B. CONNOLLY CONDENSER MOUNTING Filed Nov. 5, 1925 Hnwenitor a Patented Sept. 25, 1928.

UNITED STATES- 1,685,563 PATENT OFFICE.

WILLIAM B. CONNOLLY, OF ROCHESTER,

NEW YORK, ASSIGNOR TO NORTH EAST ELECTRIC COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

CONDENSER MOUNTING.

Application filed November 5, 1925.

In certain small electrical apparatus, in which a circuit-breakeris contained within a housing of circular form, it is necessary, or desirable, to associate a condenser with the circuit'breaker, and enclose it within the Same housing. The object of the present invention is to provide a simple, secure, and inexpensive mounting for such a condenser, and preferablyto associate this mounting with the binding-posts through which the circuit-breaker is connected with an external circuit, in such a manner as to simplify the assembling of the parts and to economize in the use of insulating material.

The invention is useful particularly in con nection with electric horns or sound signals of the magnetic type, but may also have other applications which will be apparent to those skilled in the art.

To the foregoing end it is proposed to mount a condenser upon a thin strip of insulating material, which is bent at its ends to conform substantially to the inner surface of the housing, these ends being then secured to the housing by some convenient means. In the most complete embodiment of the invention the binding-posts are used as the attaching means, and the said strip of insulating material, in addition to serving as a support for the condenser, serves also as a part of the insulation by which the binding-posts are insulated from the housing.

The invention is more particularly described in connection with the following description of the illustrated embodiment of the invention.

In the accompanying drawings, Fig. l is a front-elevation of a portion of a magnetic horn, in which the present invention is embodied, showing particularly the housing and the parts enclosed therein, with certain of the parts shown in section. Fig. 2 is a horizontal sectional view showing the lower part of housing, together with the condenser and 'its mounting. Fig. 3 is a detail-view showing the condenser alone, with connecting wires attached to its terminals, and Fig. I

' 4 shows the condenser after it has been wound with tape, or other suitable material, to protect and strengthen its ends.

The invention is illustrated. as embodied'in a magnetic horn provided with a generally cylindrical or circular housing 5, which encloses a central elect-romagnet 6 provided with a coil or winding 7. The housing also Serial No. 67.149.

encloses a circuit-breaker 8, by which the flow of current through the winding is controlled. The other parts of the horn, and the details of form and construction of the magnet and the circuit-breaker, constitute no-part of the present invention, and are not therefore illustrated.

The horn is connected with an external source of current through binding-posts 9, which enter the sides of the housing. The condenser 10 is shown as of a well-known form,- in which the materials are wound upon each other, and then pressed into flattened form. In accordance with the usual practice, this form is maintained by reason of the imwax. The condenser has the usual terminalstrips 11, projecting from its ends, and these strips are soldered or otherwise attached to connecting wires 12, in the usual manner. In accordance with the present invention, after the wires have been so attached, a narrow strip of tape, or other binding. material 13 is wound endwise over the condenser, as shown in Fig. 4, thus covering the ends of the condenser and binding the terminals and the wires 12 securely in place. After this operation, the condenser is laid against the middle of a strip 14 of flexible sheet material such as fibre, or heavy fish paper, and is bound in place thereon by tape 15 .wound around the strip and the condenser from end to end of the latter. In this way,.the condenser is fixed in place on the strip, and it is at the same time provided with aprotective covering. The operation is preferably completed bv dipping the condenser and its mounting-stripin shellac varnish, or some other suitable insulating varnish, by which the parts are securely cemented together and are rendered, to some extent, waterproof.

The condenser is secured in place within the housing by fixing the ends of the strip 14' under the inner heads of the binding posts 9. For this purpose, the ends of the strip are curved to conform to the shape of the housing, and are perforated to receive the binding completely insulated without the necessity of providing the inner bushings or Washers commonly used for the purpose. The strip 14 thus serves the double function of supporting the condenser and insulating the bindingposts. 4

The nuts 17 are referred to herein as the inner "heads" of the binding-posts, but so far as the present invention is involved it is immaterial whether or not these inner heads are removable and have the formof nuts as shown, the essential features of the construction being that the binding-posts have, at their inner portions, some form of head or abutment to bear against the ends of the strip 14. In the drawings the binding posts are shown as being provided also with metal washers18, lying between the nuts 15 and the strip, but while the use of such washers is in some cases preferable, it is not essential to'the invention.

The invention Claimed is:

1. The combination, with a condenser of flattened form, with, terniinalsat its ends, and with connecting-wires attached to said terminals, of flexible binding material wrapped endwise around the condenser and enclosing said terminals and the ends of said wires; an elongated strip of flexible material of greater length than the condenser; and flexible binding material wrapped around the condenser and said strip and securing the condenser to the intermediate part of. the strip, 1

ii. The combination. with a housing, and

two binding-posts projecting through the wall of the lltlllrlllg. of a strip of'sheet-niaterial removably secured, at its ends, between said wall and the inner heads of the bindingposts, and a condenser seitlltttl to the inter mediate part of said strip.

1 The i-oi'nbination, with a housing, and a binding-post projecting through the wall of the housing. of a pieceo'l' sheet insuhiting material clamped between the housing and the inner head of the binding-post and insulating these parts from each other, a condenser fixed to and supported by said piece of insulating n'iaterial, and a wire connecting the bindingpost with one of the condenser terminals.

4. The combination, with a housing of-circular form, of a strip of insulating material with a straight intcrniediate portion and with cmi-portions curved to fit against the wall of the housing; binding-posts passing through said wall and said strip and securing the strip in place; a. condenser lying against said straight portion of the strip: and flexible binding material wrapped around the strip and the condenser and securing the latter in place.

WILLIAM B. CONN OLLY. 

